NServiceBus and MSDTC across domains?

So I'm trying to use NServiceBus and everything goes fine until my application tries to write data to the database via EF6, where I consistently get this exception:

2016-11-18 13:35:28.340 INFO NServiceBus.RecoverabilityExecutor Immediate Retry is going to retry message '28392aef-de00-4162-8cca-a6c200c0e68e' because of an exception: System.Data.Entity.Core.EntityException: The underlying provider failed on Open. ---> System.Transactions.TransactionManagerCommunicationException: Communication with the underlying transaction manager has failed. ---> System.Runtime.InteropServices.COMException: The MSDTC transaction manager was unable to pull the transaction from the source transaction manager due to communication problems. Possible causes are: a firewall is present and it doesn't have an exception for the MSDTC process, the two machines cannot find each other by their NetBIOS names, or the support for network transactions is not enabled for one of the two transaction managers. (Exception from HRESULT: 0x8004D02B) at System.Transactions.Oletx.IDtcProxyShimFactory.ReceiveTransaction(UInt32 propgationTokenSize, Byte[] propgationToken, IntPtr managedIdentifier, Guid& transactionIdentifier, OletxTransactionIsolationLevel& isolationLevel, ITransactionShim& transactionShim) at System.Transactions.TransactionInterop.GetOletxTransactionFromTransmitterPropigationToken(Byte[] propagationToken) --- End of inner exception stack trace --- at System.Transactions.TransactionInterop.GetOletxTransactionFromTransmitterPropigationToken(Byte[] propagationToken) at System.Transactions.TransactionStatePSPEOperation.PSPEPromote(InternalTransaction tx) at System.Transactions.TransactionStateDelegatedBase.EnterState(InternalTransaction tx) at System.Transactions.EnlistableStates.Promote(InternalTransaction tx)
at System.Transactions.Transaction.Promote() at System.Transactions.TransactionInterop.ConvertToOletxTransaction(Transaction transaction) at System.Transactions.TransactionInterop.GetExportCookie(Transaction transaction, Byte[] whereabouts) at System.Data.SqlClient.SqlInternalConnection.GetTransactionCookie(Transaction transaction, Byte[] whereAbouts) at System.Data.SqlClient.SqlInternalConnection.EnlistNonNull(Transaction tx) at System.Data.SqlClient.SqlInternalConnection.Enlist(Transaction tx)
at System.Data.ProviderBase.DbConnectionInternal.ActivateConnection(Transaction transaction) at System.Data.ProviderBase.DbConnectionPool.PrepareConnection(DbConnection owningObject, DbConnectionInternal obj, Transaction transaction) at System.Data.ProviderBase.DbConnectionPool.TryGetConnection(DbConnection owningObject, UInt32 waitForMultipleObjectsTimeout, Boolean allowCreate, Boolean onlyOneCheckConnection, DbConnectionOptions userOptions, DbConnectionInternal& connection) at System.Data.ProviderBase.DbConnectionPool.WaitForPendingOpen() --- End of stack trace from previous location where exception was thrown --- at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) at System.Data.Entity.SqlServer.DefaultSqlExecutionStrategy.<>c__DisplayClass4.<b__3>d__6.MoveNext() --- End of stack trace from previous location where exception was thrown --- at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) at System.Data.Entity.SqlServer.DefaultSqlExecutionStrategy.d__91.MoveNext() --- End of stack trace from previous location where exception was thrown --- at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) at System.Data.Entity.Core.EntityClient.EntityConnection.<OpenAsync>d__8.MoveNext() --- End of inner exception stack trace --- at System.Data.Entity.Core.EntityClient.EntityConnection.<OpenAsync>d__8.MoveNext() --- End of stack trace from previous location where exception was thrown --- at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) at System.Data.Entity.Core.Objects.ObjectContext.<EnsureConnectionAsync>d__9.MoveNext() --- End of stack trace from previous location where exception was thrown --- at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) at System.Data.Entity.Core.Objects.ObjectContext.<ExecuteInTransactionAsync>d__3d1.MoveNext() --- End of stack trace from previous location where exception was thrown --- at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) at System.Data.Entity.SqlServer.DefaultSqlExecutionStrategy.d__91.MoveNext() --- End of stack trace from previous location where exception was thrown --- at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) at System.Data.Entity.Utilities.TaskExtensions.CultureAwaiter1.GetResult() at System.Data.Entity.Core.Objects.ObjectQuery1.<GetResultsAsync>d__e.MoveNext() --- End of stack trace from previous location where exception was thrown --- at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) at System.Data.Entity.Utilities.TaskExtensions.CultureAwaiter1.GetResult() at System.Data.Entity.Internal.LazyAsyncEnumerator1.<FirstMoveNextAsync>d__0.MoveNext() --- End of stack trace from previous location where exception was thrown --- at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) at System.Data.Entity.Infrastructure.IDbAsyncEnumerableExtensions.<ForEachAsync>d__51.MoveNext() --- End of stack trace from previous location where exception was thrown --- at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) at System.Runtime.CompilerServices.TaskAwaiter1.GetResult() at DAS.Services.Notifications.Data.Repository.AccountConfigurationRepository.<GetConfigurationAsync>d__2.MoveNext() in C:\source\DigitalAirStrike\DAS_Platform\das.services.notifications\src\DAS.Services.Notifications.Data\Repository\AccountConfigurationRepository.cs:line 38 --- End of stack trace from previous location where exception was thrown --- at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) at System.Runtime.CompilerServices.ConfiguredTaskAwaitable1.ConfiguredTaskAwaiter.GetResult() at DAS.Services.Notifications.Service.Sms.SmsService.d__8.MoveNext() in C:\source\DigitalAirStrike\DAS_Platform\das.services.notifications\src\DAS.Services.Notifications.Service\Sms\SmsService.cs:line 92 --- End of stack trace from previous location where exception was thrown --- at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) at System.Runtime.CompilerServices.ConfiguredTaskAwaitable1.ConfiguredTaskAwaiter.GetResult() at DAS.Services.Notifications.Service.Sms.SmsService.<SendTextMessageAsync>d__7.MoveNext() in C:\source\DigitalAirStrike\DAS_Platform\das.services.notifications\src\DAS.Services.Notifications.Service\Sms\SmsService.cs:line 76 --- End of stack trace from previous location where exception was thrown --- at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) at System.Runtime.CompilerServices.TaskAwaiter.GetResult()
at DAS.Services.Notifications.Command.MessageDelivery.SmsDeliveryStrategy.<Deliver>d__3.MoveNext() in C:\source\DigitalAirStrike\DAS_Platform\das.services.notifications\src\DAS.Services.Notifications.Command\MessageDelivery\SmsDeliveryStrategy.cs:line 19 --- End of stack trace from previous location where exception was thrown --- at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) at System.Runtime.CompilerServices.TaskAwaiter.GetResult()
at DAS.Services.Notifications.Command.Handlers.SendSmsNotificationHandler.<Handle>d__3.MoveNext() in C:\source\DigitalAirStrike\DAS_Platform\das.services.notifications\src\DAS.Services.Notifications.Command\Handlers\SendSmsNotificationHandler.cs:line 32 --- End of stack trace from previous location where exception was thrown --- at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) at System.Runtime.CompilerServices.ConfiguredTaskAwaitable.ConfiguredTaskAwaiter.GetResult() at NServiceBus.LoadHandlersConnector.<Invoke>d__1.MoveNext() in C:\Build\src\NServiceBus.Core\Pipeline\Incoming\LoadHandlersConnector.cs:line 40 --- End of stack trace from previous location where exception was thrown --- at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) at System.Runtime.CompilerServices.ConfiguredTaskAwaitable.ConfiguredTaskAwaiter.GetResult() at NServiceBus.MutateIncomingMessageBehavior.<Invoke>d__0.MoveNext() in C:\Build\src\NServiceBus.Core\Pipeline\MutateInstanceMessage\MutateIncomingMessageBehavior.cs:line 28 --- End of stack trace from previous location where exception was thrown --- at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) at System.Runtime.CompilerServices.ConfiguredTaskAwaitable.ConfiguredTaskAwaiter.GetResult() at NServiceBus.DeserializeLogicalMessagesConnector.<Invoke>d__1.MoveNext() in C:\Build\src\NServiceBus.Core\Pipeline\Incoming\DeserializeLogicalMessagesConnector.cs:line 31 --- End of stack trace from previous location where exception was thrown --- at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) at System.Runtime.CompilerServices.ConfiguredTaskAwaitable.ConfiguredTaskAwaiter.GetResult() at NServiceBus.SubscriptionReceiverBehavior.<Invoke>d__1.MoveNext() in C:\Build\src\NServiceBus.Core\Routing\MessageDrivenSubscriptions\SubscriptionReceiverBehavior.cs:line 29 --- End of stack trace from previous location where exception was thrown --- at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) at System.Runtime.CompilerServices.ConfiguredTaskAwaitable.ConfiguredTaskAwaiter.GetResult() at NServiceBus.MutateIncomingTransportMessageBehavior.<Invoke>d__0.MoveNext() in C:\Build\src\NServiceBus.Core\Pipeline\MutateTransportMessage\MutateIncomingTransportMessageBehavior.cs:line 27 --- End of stack trace from previous location where exception was thrown --- at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) at System.Runtime.CompilerServices.ConfiguredTaskAwaitable.ConfiguredTaskAwaiter.GetResult() at NServiceBus.UnitOfWorkBehavior.<Invoke>d__0.MoveNext() in C:\Build\src\NServiceBus.Core\UnitOfWork\UnitOfWorkBehavior.cs:line 26 --- End of stack trace from previous location where exception was thrown --- at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() at NServiceBus.UnitOfWorkBehavior.<Invoke>d__0.MoveNext() in C:\Build\src\NServiceBus.Core\UnitOfWork\UnitOfWorkBehavior.cs:line 49 --- End of stack trace from previous location where exception was thrown --- at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) at System.Runtime.CompilerServices.ConfiguredTaskAwaitable.ConfiguredTaskAwaiter.GetResult() at NServiceBus.ProcessingStatisticsBehavior.<Invoke>d__0.MoveNext() in C:\Build\src\NServiceBus.Core\Performance\Statistics\ProcessingStatisticsBehavior.cs:line 25 --- End of stack trace from previous location where exception was thrown --- at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) at System.Runtime.CompilerServices.ConfiguredTaskAwaitable.ConfiguredTaskAwaiter.GetResult() at NServiceBus.ReceivePerformanceDiagnosticsBehavior.<Invoke>d__2.MoveNext() in C:\Build\src\NServiceBus.Core\Performance\Statistics\ReceivePerformanceDiagnosticsBehavior.cs:line 40 --- End of stack trace from previous location where exception was thrown --- at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) at System.Runtime.CompilerServices.ConfiguredTaskAwaitable.ConfiguredTaskAwaiter.GetResult() at NServiceBus.TransportReceiveToPhysicalMessageProcessingConnector.<Invoke>d__1.MoveNext() in C:\Build\src\NServiceBus.Core\Pipeline\Incoming\TransportReceiveToPhysicalMessageProcessingConnector.cs:line 37 --- End of stack trace from previous location where exception was thrown --- at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) at System.Runtime.CompilerServices.ConfiguredTaskAwaitable.ConfiguredTaskAwaiter.GetResult() at NServiceBus.MainPipelineExecutor.<Invoke>d__1.MoveNext() in C:\Build\src\NServiceBus.Core\Pipeline\MainPipelineExecutor.cs:line 32 --- End of stack trace from previous location where exception was thrown --- at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) at System.Runtime.CompilerServices.ConfiguredTaskAwaitable.ConfiguredTaskAwaiter.GetResult() at NServiceBus.Transport.SQLServer.ReceiveStrategy.<TryProcessingMessage>d__12.MoveNext() in C:\Build\src\NServiceBus.SqlServer\Receiving\ReceiveStrategy.cs:line 33 --- End of stack trace from previous location where exception was thrown --- at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) at System.Runtime.CompilerServices.ConfiguredTaskAwaitable1.ConfiguredTaskAwaiter.GetResult() at NServiceBus.Transport.SQLServer.ReceiveWithTransactionScope.d__4.MoveNext() in C:\Build\src\NServiceBus.SqlServer\Receiving\ReceiveWithTransactionScope.cs:line 99 --- End of stack trace from previous location where exception was thrown --- at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) at System.Runtime.CompilerServices.ConfiguredTaskAwaitable`1.ConfiguredTaskAwaiter.GetResult() at NServiceBus.Transport.SQLServer.ReceiveWithTransactionScope.d__1.MoveNext() in C:\Build\src\NServiceBus.SqlServer\Receiving\ReceiveWithTransactionScope.cs:line 39

The error suggests one of the follwing:

• The firewall is blocking DTC
• The computers can't resolve each other via NetBIOS
• Support for network transactions isn't enabled on one or both computers

I've added both inbound and outbound exceptions on the box where the application is running and the SQL Server box on port 135.

The SQL Server instance is running on a VM in Azure. I've added the exceptions to the network security group as well.

I've enabled network connections for DTC on both boxes.

The application box is running on DomainA while the VM is on DomainB

I'm having a bear of a time getting around this. What do I need to change to get this to work? Is there a workaround to prevent escalating to DTC?

UPDATE: Both domains are run through some sort of Azure federation, so they were able to ping each other, they just could resolve each others' host names so I added the IP addresses to each box's host file and now they can find each other and everything seems to be working.

So I guess now, I'm wondering if there is a way to fix this through some sort of configuration so that I don't have to add host entries to every app box and every developer's box that wants to run locally to test.

I would try and avoid the use of MSDTC in your scenario, instead use the Outbox feature.

Does that help?